Do not use rotation as indicator to relaunch from config change.

Rotation is a hidden member inside configuration that should not
influence configuration related logic. This CL ensures that we do
not consider changes to the rotation as grounds for relaunching an
activity.

Change-Id: I9e6d4a1a75fd3ee3beb63f307433e9c3fcfd6dd4
Fixes: 63533208
Test: go/wm-smoke
Test:cts/hostsidetests/services/activityandwindowmanager/util/run-test CtsServicesHostTestCases android.server.cts.ActivityManagerConfigChangeTests